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TPS54426RSAR
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TPS54426RSAR

Product Overview

Category

The TPS54426RSAR belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Low output voltage ripple
  • Fast transient response

Package

The TPS54426RSAR comes in a small outline package (SOP) with exposed pad for enhanced thermal dissipation.

Essence

The essence of this product lies in its ability to efficiently regulate voltage in various electronic applications.

Packaging/Quantity

The TPS54426RSAR is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0.6V to 5.5V
  • Output Current: Up to 4A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. PGND: Power ground pin
  3. SW: Switch node pin
  4. FB: Feedback voltage pin
  5. EN: Enable pin
  6. SS/TR: Soft-start/Tracking pin
  7. VCC: Supply voltage pin
  8. PG: Power good indicator pin
  9. COMP: Compensation pin

Functional Features

  • Integrated high-side and low-side MOSFETs
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Power good indicator
  • Soft-start and tracking capability

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power dissipation
  • Wide input voltage range allows for versatile applications
  • Low output voltage ripple ensures stable operation of downstream components
  • Fast transient response enables quick load changes

Disadvantages

  • Limited output current capacity (up to 4A)
  • Relatively high switching frequency may introduce electromagnetic interference in sensitive applications

Working Principles

The TPS54426RSAR operates as a synchronous buck converter, converting the input voltage to a regulated output voltage. It utilizes pulse-width modulation (PWM) to control the duty cycle of the high-side and low-side MOSFETs, thereby regulating the output voltage. The feedback voltage is compared with a reference voltage to adjust the duty cycle and maintain the desired output voltage.

Detailed Application Field Plans

The TPS54426RSAR finds application in various electronic systems, including but not limited to: - Power supplies for computer peripherals - Industrial automation equipment - Telecommunications devices - Consumer electronics - Automotive systems

Detailed and Complete Alternative Models

  1. TPS54427RSAR: Similar specifications, but with higher output current capacity (up to 6A).
  2. TPS54428RSAR: Similar specifications, but with lower output voltage range (0.6V to 3.6V).
  3. TPS54429RSAR: Similar specifications, but with wider input voltage range (4.5V to 28V).

(Note: These alternative models are provided for reference and may have slight variations in features and performance.)

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기술 솔루션에 TPS54426RSAR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of TPS54426RSAR in technical solutions:

  1. Q: What is the TPS54426RSAR? A: The TPS54426RSAR is a synchronous step-down DC-DC converter designed for various applications, including industrial, automotive, and telecommunications.

  2. Q: What is the input voltage range of the TPS54426RSAR? A: The TPS54426RSAR has an input voltage range of 4.5V to 18V.

  3. Q: What is the output voltage range of the TPS54426RSAR? A: The TPS54426RSAR can provide an adjustable output voltage range from 0.6V to 5.5V.

  4. Q: What is the maximum output current of the TPS54426RSAR? A: The TPS54426RSAR can deliver up to 4A of continuous output current.

  5. Q: Does the TPS54426RSAR have built-in protection features? A: Yes, the TPS54426RSAR includes various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.

  6. Q: Can the TPS54426RSAR operate in a wide temperature range? A: Yes, the TPS54426RSAR is designed to operate in a temperature range of -40°C to 125°C.

  7. Q: What is the efficiency of the TPS54426RSAR? A: The TPS54426RSAR offers high efficiency, typically above 90%, depending on the input and output conditions.

  8. Q: Is the TPS54426RSAR suitable for battery-powered applications? A: Yes, the TPS54426RSAR is suitable for battery-powered applications due to its low quiescent current and high efficiency.

  9. Q: Can the TPS54426RSAR be synchronized with an external clock? A: Yes, the TPS54426RSAR provides a synchronization pin that allows it to be synchronized with an external clock signal.

  10. Q: What package options are available for the TPS54426RSAR? A: The TPS54426RSAR is available in a 20-pin VQFN package, which offers a compact and space-saving solution.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult the manufacturer for detailed information.